imagemagick: 6.9.5-2 -> 6.9.5-10

Fixes lots of CVEs, including the recent:

  * CVE-2016-4562, CVE-2016-4563, CVE-2016-4564
  * CVE-2016-5687
  * CVE-2016-5010
  * CVE-2016-5688
  * CVE-2016-5689, CVE-2016-5690, CVE-2016-5691
  * CVE-2016-5841 and CVE-2016-5842
  * CVE-2016-6491
  * CVE-2016-6520

cc #18856

pkgs/applications/graphics/ImageMagick/default.nix

@@ -11,11 +11,12 @@ let
     else throw "ImageMagick is not supported on this platform.";
 
   cfg = {
-    version = "6.9.5-2";
-    sha256 = "09h3rpr1jnzd7ipy5d16r2gi0bwg4hk5khwzv4cyhv1xzs8pk7pj";
+    version = "6.9.5-10";
+    sha256 = "0cxjzqzca80vf6sfx4z9zq4wq2w0vy9ajp9kf88jb4na8mwsn198";
     patches = [];
   }
     # Freeze version on mingw so we don't need to port the patch too often.
+    # FIXME: This version has multiple security vulnerabilities
     // lib.optionalAttrs (stdenv.cross.libc or null == "msvcrt") {
         version = "6.9.2-0";
         sha256 = "17ir8bw1j7g7srqmsz3rx780sgnc21zfn0kwyj78iazrywldx8h7";